body{
    margin: 0;
    padding: 0;
    background-color: rgb(173, 162, 134);
}

.book{
    position: absolute;
    transform-style:preserve-3d;
    /* border: 1px solid black; */
    height: 600px;
    width: 450px;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    transform:translate(-50%,-50%) perspective(2000px) rotate(5deg);
    cursor: pointer;
    
}

.cover{
    position: absolute;
    background-color: rgb(233, 172, 58);
    border-radius: 5px;
    width: 450px;
    height: 600px;
    transform-origin:left;
    transition: 0.25s ease-in;
    text-align: center;
    /* text-decoration: underline 5px; */
    color:#fff;
    overflow: hidden;
    user-select:none;
}

.cover_front>img{
    position: absolute;
    width: calc(100% - 160px);
    bottom: 50px;
    left: 80px;
}

.cover_back{
    z-index: -1;
    text-align: center; 
}
.cover_back>img{
    margin-top: 100px;
}

.book:hover .cover{
    position: absolute;
    width: 450px;
    height: 600px;
    transform-origin: left;
    transform: rotateY(-160deg);
}
.book:hover .cover_back{
    z-index: 2;
}

.page1 {
    
    height: 99%;
    width: 98%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border: 0.5px rgba(51, 51, 51, 0.411) solid;
    box-shadow:inset 450px 0 20px rgba(10, 10, 10, 0.137),0 20px 100px rgba(0,0,0,0.5);
    background-color: #fff;
}
.page1> * {
    margin: 10px;
}
.page1 input{
    width: 200px;
    padding: 10px;
    border: none;
    border-radius: 5px;
}
.page1 button{
    width: 150px;
    height: 35px;
}
.page{
    /* border: 1px #e3e3e3 solid; */
}
.text{
    text-decoration: underline;
    font-size: 64px;
}